[sdiy] MIDIVerb reverse engineering

[Eric Brombaugh]

Oh - nice work. I'll link that from my repo if you don't mind - spread 
the love around.

Eric

On 7/16/25 3:21 PM, Gordonjcp wrote:
> On Wed, Jul 16, 2025 at 12:35:35PM -0700, Eric Brombaugh via Synth-diy wrote:
>> Back in 2021 Paul Schreiber and I reverse engineered the MIDIVerb I and
>> although Paul posted a number of Youtube videos to discuss what we'd
>> learned, we decided at that time to keep the design materials we'd generated
>> from that effort private. Now that Paul is no longer with us I've
>> open-sourced the materials on Github:
> 
> Based on the circuit diagrams from the videos, some discussions on here and on Reddit, and a bit of experimentation, I came up with this:
> 
> https://github.com/ErroneousBosh/BarrVerb
> 
> It downsamples to 24kHz pretty stupidly, so it only "plays properly" for 48kHz samples.
> 
> If I could find a working MIDIFex ROM I expect it could be cooked into a format suitable for this, too.
>